Created
September 8, 2018 03:54
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Realizando download via javascript!
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>testing download</title> | |
| </head> | |
| <body> | |
| <h1>testing download</h1> | |
| <button onclick="fetch('GET', 'http://127.0.0.1:8080/public/downloads.zip', true)">new version</button> | |
| <br><br> | |
| <button onclick="fetch('GET', 'http://127.0.0.1:8080/public/downloads.zip', false)">old version</button> | |
| <script> | |
| console.log('--> testing download', new Date()); | |
| const forceDownload = (blob, filename) => { | |
| const urlCreator = window.URL || window.webkitURL | |
| let link = document.createElement('a'); | |
| link.href = urlCreator.createObjectURL(blob); | |
| link.download = filename; | |
| link.click(); | |
| urlCreator.revokeObjectURL(link.href); | |
| } | |
| const binStrToBlob = (binStr, type) => | |
| new Blob([ Uint8Array.from(binStr.split(''), c => c.charCodeAt()) ], { type }); | |
| const fetch = (method, url, newVersion) => { | |
| let request = new XMLHttpRequest(); | |
| if (newVersion) { | |
| request.responseType = 'blob'; | |
| } else { | |
| request.overrideMimeType('text/plain; charset=x-user-defined'); | |
| } | |
| request.open(method, url) | |
| request.onload = function() { | |
| const blob = newVersion ? | |
| this.response : binStrToBlob(this.response, this.getResponseHeader('content-type')) | |
| console.log('--> result', this); | |
| console.log('--> blob', blob); | |
| forceDownload(blob, 'teste.zip') | |
| }; | |
| request.send(); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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